Jonna Vainikainen

Data & Process Manager

I have been working at Castrén & Snellman for 16 years. In total, I have well over 20 years of experience in the world of the legal services industry. Over the years, my duties have been diverse and they have developed along with our firm. Experience of different duties and understanding of the services provided by our firm is a plus for my role in our development work.

As a Business Process Manager, I am responsible for business processes and master data management. I am also actively involved in the development of the business. The best thing in my job is to develop our operations in such a manner that the experience our clients have will be improved and carrying out duties as our colleague will become easier. My spark is also lit by the work’s diversity and the fact that I have the possibility to learn something new all the time and to share my competence, e.g. by training our personnel. I am an organised problem solver who usually has a smile on my face and my feet firmly on the ground.

Even though life is often hectic both at the office and outside it, I try to find time to learn new things. A few years ago, I completed a specialist qualification in management and a further qualification in coaching. Last year I completed a specialist vocational qualification in coaching. I find it interesting to explore how I can utilise my experience from sports training in the business world.

Outside work, I act as a self-defence coach for adults, children and teenagers. Nature is close to my heart, in particular the submarine world. I spend most of my holidays scuba diving and I try to combine both of my passionate hobbies.

Latest references

We acted as Finnish law legal adviser to the lenders and the export credit agencies in connection with the EUR 514.4 million green project financing for the development and construction of Easpring Finland New Materials Oy’s cathode active material (CAM) manufacturing plant in Kotka, Finland. The borrower, Easpring Finland New Materials Oy, is a joint venture owned by Beijing Easpring Material Technology, Finnish Minerals Group and LG Energy Solution. The financing was provided by six international commercial banks, with Société Générale acting as financial adviser and mandated lead arranger together with Natixis as co-mandated lead arranger, and DNB, ICBC, ING and Standard Chartered participating as lenders, with support from the export credit agencies Finnvera and Sinosure. The project represents a significant milestone for Finland and the European battery value chain by strengthening Europe’s domestic supply of cathode active materials, a key component in lithium-ion batteries for electric vehicles and energy storage applications. Once the first phase of the project is operational, the Kotka facility is expected to produce approximately 60,000 tonnes of cathode active material annually, making it one of the largest CAM production plants in Europe and supplying leading battery manufacturers across Europe. 
Case published 21.7.2026
We acted as Finnish legal advisor to Delta Capacity in connection with its acquisition of the ready-to-build Karppio battery energy storage system (BESS) project from Helios Nordic Energy. The acquisition was made and the project will be implemented together with Strioga Family Foundation. The Karppio BESS project is located in Teuva, Finland, and has a capacity of 125 MW / 300 MWh. Delta Capacity will lead the remaining development of the project through to commissioning, planned for 2027, and will serve as long-term asset manager. Delta Capacity is a Swiss-based developer of utility scale battery storage systems. The acquisition adds to Delta Capacity’s growing Nordic portfolio. 
Case published 20.7.2026
We advised Swedbank AB (publ) on the refinancing of a large Finnish retail real estate portfolio owned by Trophi’s Finnish subsidiaries. Trophi is the leading Nordic real estate company focusing on grocery anchored retail properties, with 278 properties across Sweden and Finland. Finland is a market that continues to develop and is also strategically important for Trophi, accounting for approximately 30% of Trophi’s letting and property value.
Case published 17.7.2026
We are acting as Finnish legal advisor to HANZA in connection with its acquisition of Fortaco Finland’s heavy mechanics and assembly business. The transaction is structured as a combined asset and share acquisition and includes Fortaco Finland’s heavy mechanics and assembly operations in Finland, as well as shares in two Estonian and two Polish subsidiaries. The transaction is expected to close during the fourth quarter of 2026, subject to customary closing conditions, including regulatory approvals. Founded in 2008, HANZA is a Swedish mechanical engineering and electronics contract manufacturing company listed on the Nasdaq Stockholm main list. HANZA has approximately 5,000 employees and annual sales of SEK 10 billion. We advise HANZA on this transaction in collaboration with the Swedish law firm Lindahl.
Case published 15.7.2026
We acted as Finnish counsel to RVRC Holding AB (RevolutionRace) in its acquisition of 90.1% of the shares in ICANIWILL AB (ICIW). Mannheimer Swartling (Sweden) acted as lead counsel for RevolutionRace. ICIW, founded in Sweden in 2012, is a Swedish training apparel brand.  RevolutionRace is a fast-growing Swedish outdoor brand offering multifunctional products to people with an active lifestyle. The company operates with a digital D2C business model reaching customers in approximately 40 countries. The company is listed on Nasdaq Stockholm since 2021. 
Case published 14.7.2026
We advised a special investment fund managed by Mandatum on the sale of the PMK Building, a mixed-use commercial property located in Tammela, Tampere. The property hosts dozens of tenants and offers, inter alia, warehouse, production and office premises.
Case published 13.7.2026
We advised Suominen Corporation in connection with its rights issue. The offering was oversubscribed, and the company raised gross proceeds of approximately EUR 28 million. We also advised Suominen in connection with the renegotiation of the terms of the company’s three-year EUR 100 million syndicated credit facility, under which the maturity was extended and headroom was added to the financial covenants. “I would like to thank our shareholders for their support and confidence in Suominen’s future. The completion of the Offering will enable us to accelerate the implementation of our Full Potential Program while strengthening our capital structure. Our transformation particularly focuses on enhancing the reliability and efficiency of our production and supply, and on reinforcing our commercial capabilities, allowing us to better meet the expectations of our customers and shareholders”, comments Charles Héaulmé, President and CEO of Suominen. Suominen is a nonwovens manufacturer operating in global markets. Suominen creates value by taking fiber raw materials and turning them into nonwovens that the company’s customers convert into both consumer and professional end products. Suominen’s vision is to be the frontrunner for nonwovens innovation and sustainability. Suominen’s net sales in 2025 were EUR 412.4 million and the company has almost 700 professionals working in Europe and in the Americas. Suominen’s shares are listed on Nasdaq Helsinki.
Case published 6.7.2026
We acted as joint legal advisor for Nordea Bank Abp and Avain Yhtiöt in an approximately EUR 48 million financing arrangement which included facilities for refinancing of an existing real estate portfolio and also for acquisition and property development purposes. The financing arrangement strengthens Avain Yhtiöt’s objective to build and maintain a functional, safe and environmentally friendly living environment, as well as to develop the overall quality of housing and construction. Avain Yhtiöt is a Finnish group specialising in housing and housing-related services, construction contracting and new construction. Its goal is to build 1,000 new apartments per year in key growth areas in Finland.
Case published 2.7.2026